woodford shale expiries

Here's a bit of an issue for RFE that I have been pondering about recently:

- Most of RFE's wells have been drilled in the Mississippi Lime;
-I believe that a substantial portion of RFE's leases had expiries this year;
- My understanding of the Held by Production ("HBP") rules is that you only hold down to the interval that is being produced from;
-The Woodford Shale sits below the Mississippi Lime.

Given the above I can see RFE losing a substantial amount of access to the Woodford Shale. Management don't give us much info, so has anyone else seen any extra info regarding expiries from brokers or other sources?